package co.edu.usbcali.museo.presentation.backEndBeans;

import co.edu.usbcali.museo.exceptions.ExceptionMessages;
import co.edu.usbcali.museo.modelo.Autor;
import co.edu.usbcali.museo.modelo.Cuadro;
import co.edu.usbcali.museo.modelo.Museo;
import co.edu.usbcali.museo.modelo.Periodo;
import co.edu.usbcali.museo.modelo.Restauracion;
import co.edu.usbcali.museo.modelo.Sesion;
import co.edu.usbcali.museo.modelo.Tecnica;
import co.edu.usbcali.museo.modelo.Tipoestado;
import co.edu.usbcali.museo.modelo.control.AutorLogic;
import co.edu.usbcali.museo.modelo.control.CuadroLogic;
import co.edu.usbcali.museo.modelo.control.IAutorLogic;
import co.edu.usbcali.museo.modelo.control.ICuadroLogic;
import co.edu.usbcali.museo.modelo.control.IMuseoLogic;
import co.edu.usbcali.museo.modelo.control.IPeriodoLogic;
import co.edu.usbcali.museo.modelo.control.IRestauracionLogic;
import co.edu.usbcali.museo.modelo.control.ISesionLogic;
import co.edu.usbcali.museo.modelo.control.ITecnicaLogic;
import co.edu.usbcali.museo.modelo.control.ITipoestadoLogic;
import co.edu.usbcali.museo.modelo.control.MuseoLogic;
import co.edu.usbcali.museo.modelo.control.PeriodoLogic;
import co.edu.usbcali.museo.modelo.control.RestauracionLogic;
import co.edu.usbcali.museo.modelo.control.SesionLogic;
import co.edu.usbcali.museo.modelo.control.TecnicaLogic;
import co.edu.usbcali.museo.modelo.control.TipoestadoLogic;
import co.edu.usbcali.museo.modelo.dto.PeriodoDTO;
import co.edu.usbcali.museo.presentation.businessDelegate.BusinessDelegatorView;
import co.edu.usbcali.museo.utilities.DataPage;
import co.edu.usbcali.museo.utilities.DataSource;
import co.edu.usbcali.museo.utilities.PagedListDataModel;
import co.edu.usbcali.museo.utilities.Utilities;

import com.icesoft.faces.async.render.RenderManager;
import com.icesoft.faces.async.render.Renderable;
import com.icesoft.faces.component.ext.HtmlCommandButton;
import com.icesoft.faces.component.ext.HtmlInputText;
import com.icesoft.faces.component.selectinputdate.SelectInputDate;
import com.icesoft.faces.context.DisposableBean;
import com.icesoft.faces.webapp.xmlhttp.FatalRenderingException;
import com.icesoft.faces.webapp.xmlhttp.PersistentFacesState;
import com.icesoft.faces.webapp.xmlhttp.RenderingException;
import com.icesoft.faces.webapp.xmlhttp.TransientRenderingException;

import java.math.BigDecimal;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Set;
import java.util.TimeZone;
import java.util.Vector;

import javax.faces.application.FacesMessage;
import javax.faces.context.FacesContext;
import javax.faces.event.ValueChangeEvent;
import javax.faces.model.DataModel;


/**
 *
 * @author Zathura Code Generator http://code.google.com/p/zathura,
 *
 */
public class PeriodoView extends DataSource implements Renderable,
    DisposableBean {
    private HtmlInputText txtCodperiodo;
    private SelectInputDate txtFechafin;
    private SelectInputDate txtFechainicio;
    private HtmlCommandButton btnSave;
    private HtmlCommandButton btnModify;
    private HtmlCommandButton btnDelete;
    private HtmlCommandButton btnClear;
    private boolean renderDataTable;
    private boolean flag = true;
    private RenderManager renderManager;
    private PersistentFacesState state = PersistentFacesState.getInstance();
    private List<Periodo> periodo;
    private List<PeriodoDTO> periodoDTO;

    public PeriodoView() {
        super("");
    }

    public String action_clear() {
        txtFechafin.setValue(null);
        txtFechafin.setDisabled(true);
        txtFechainicio.setValue(null);
        txtFechainicio.setDisabled(true);
        txtCodperiodo.setValue(null);
        txtCodperiodo.setDisabled(false);
        btnSave.setDisabled(true);
        btnDelete.setDisabled(true);
        btnModify.setDisabled(true);
        btnClear.setDisabled(false);

        return "";
    }

    public void listener_txtId(ValueChangeEvent event) {
        if ((event.getNewValue() != null) && !event.getNewValue().equals("")) {
            Periodo entity = null;

            try {
                Long codperiodo = new Long(txtCodperiodo.getValue().toString());
                entity = BusinessDelegatorView.getPeriodo(codperiodo);
            } catch (Exception e) {
                // TODO: handle exception
            }

            if (entity == null) {
                txtFechafin.setDisabled(false);
                txtFechainicio.setDisabled(false);
                txtCodperiodo.setDisabled(false);
                btnSave.setDisabled(false);
                btnDelete.setDisabled(true);
                btnModify.setDisabled(true);
                btnClear.setDisabled(false);
            } else {
                txtFechafin.setValue(entity.getFechafin());
                txtFechafin.setDisabled(false);
                txtFechainicio.setValue(entity.getFechainicio());
                txtFechainicio.setDisabled(false);
                txtCodperiodo.setValue(entity.getCodperiodo());
                txtCodperiodo.setDisabled(true);
                btnSave.setDisabled(true);
                btnDelete.setDisabled(false);
                btnModify.setDisabled(false);
                btnClear.setDisabled(false);
            }
        }
    }

    public String action_save() {
        try {
            BusinessDelegatorView.savePeriodo((((txtCodperiodo.getValue()) == null) ||
                (txtCodperiodo.getValue()).equals("")) ? null
                                                       : new Long(
                    txtCodperiodo.getValue().toString()),
                (((txtFechafin.getValue()) == null) ||
                (txtFechafin.getValue()).equals("")) ? null
                                                     : (Date) txtFechafin.getValue(),
                (((txtFechainicio.getValue()) == null) ||
                (txtFechainicio.getValue()).equals("")) ? null
                                                        : (Date) txtFechainicio.getValue());
            FacesContext.getCurrentInstance()
                        .addMessage("",
                new FacesMessage(ExceptionMessages.ENTITY_SUCCESFULLYSAVED));
        } catch (Exception e) {
            FacesContext.getCurrentInstance()
                        .addMessage("", new FacesMessage(e.getMessage()));
        }

        action_clear();

        return "";
    }

    public String action_delete() {
        try {
            BusinessDelegatorView.deletePeriodo((((txtCodperiodo.getValue()) == null) ||
                (txtCodperiodo.getValue()).equals("")) ? null
                                                       : new Long(
                    txtCodperiodo.getValue().toString()));
            FacesContext.getCurrentInstance()
                        .addMessage("",
                new FacesMessage(ExceptionMessages.ENTITY_SUCCESFULLYDELETED));
        } catch (Exception e) {
            FacesContext.getCurrentInstance()
                        .addMessage("", new FacesMessage(e.getMessage()));
        }

        action_clear();

        return "";
    }

    public String action_modify() {
        try {
            BusinessDelegatorView.updatePeriodo((((txtCodperiodo.getValue()) == null) ||
                (txtCodperiodo.getValue()).equals("")) ? null
                                                       : new Long(
                    txtCodperiodo.getValue().toString()),
                (((txtFechafin.getValue()) == null) ||
                (txtFechafin.getValue()).equals("")) ? null
                                                     : (Date) txtFechafin.getValue(),
                (((txtFechainicio.getValue()) == null) ||
                (txtFechainicio.getValue()).equals("")) ? null
                                                        : (Date) txtFechainicio.getValue());
            FacesContext.getCurrentInstance()
                        .addMessage("",
                new FacesMessage(ExceptionMessages.ENTITY_SUCCESFULLYMODIFIED));
        } catch (Exception e) {
            FacesContext.getCurrentInstance()
                        .addMessage("", new FacesMessage(e.getMessage()));
        }

        action_clear();

        return "";
    }

    public String action_modifyWitDTO(Long codperiodo, Date fechafin,
        Date fechainicio) throws Exception {
        try {
            BusinessDelegatorView.updatePeriodo(codperiodo, fechafin,
                fechainicio);
            renderManager.getOnDemandRenderer("PeriodoView").requestRender();
            FacesContext.getCurrentInstance()
                        .addMessage("",
                new FacesMessage(ExceptionMessages.ENTITY_SUCCESFULLYMODIFIED));
        } catch (Exception e) {
            //renderManager.getOnDemandRenderer("PeriodoView").requestRender();
            FacesContext.getCurrentInstance()
                        .addMessage("", new FacesMessage(e.getMessage()));
            throw e;
        }

        return "";
    }

    public List<Periodo> getPeriodo() {
        if (flag) {
            try {
                periodo = BusinessDelegatorView.getPeriodo();
                flag = false;
            } catch (Exception e) {
                flag = true;
                FacesContext.getCurrentInstance()
                            .addMessage("", new FacesMessage(e.getMessage()));
            }
        }

        return periodo;
    }

    public boolean isFlag() {
        return flag;
    }

    public void setPeriodo(List<Periodo> periodo) {
        this.periodo = periodo;
    }

    public boolean isRenderDataTable() {
        try {
            if (flag) {
                if (BusinessDelegatorView.findTotalNumberPeriodo() > 0) {
                    renderDataTable = true;
                } else {
                    renderDataTable = false;
                }
            }

            flag = false;
        } catch (Exception e) {
            renderDataTable = false;
            e.printStackTrace();
        }

        return renderDataTable;
    }

    public DataModel getData() {
        state = PersistentFacesState.getInstance();

        if (onePageDataModel == null) {
            onePageDataModel = new LocalDataModel(pageSize);
        }

        return onePageDataModel;
    }

    /**
    * This is where the Object data is retrieved from the database and
    * returned as a list of objects for display in the UI.
    */
    private DataPage<Periodo> getDataPage(int startRow, int pageSize) {
        // Retrieve the total number of objects from the database.  This
        // number is required by the DataPage object so the paginator will know
        // the relative location of the page data.
        int totalNumberPeriodo = 0;

        try {
            totalNumberPeriodo = BusinessDelegatorView.findTotalNumberPeriodo()
                                                      .intValue();
        } catch (Exception e) {
            FacesContext.getCurrentInstance()
                        .addMessage("", new FacesMessage(e.getMessage()));
        }

        // Calculate indices to be displayed in the ui.
        int endIndex = startRow + pageSize;

        if (endIndex > totalNumberPeriodo) {
            endIndex = totalNumberPeriodo;
        }

        try {
            periodo = BusinessDelegatorView.findPagePeriodo(sortColumnName,
                    sortAscending, startRow, endIndex - startRow);

            // Remove this Renderable from the existing render groups.
            //leaveRenderGroups();        			
        } catch (Exception e) {
            FacesContext.getCurrentInstance()
                        .addMessage("", new FacesMessage(e.getMessage()));
        }

        // Add this Renderable to the new render groups.
        //joinRenderGroups();
        // Reset the dirtyData flag.
        onePageDataModel.setDirtyData(false);
        // This is required when using Hibernate JPA.  If the EntityManager is not
        // cleared or closed objects are cached and stale objects will show up
        // in the table.
        // This way, the detached objects are reread from the database.
        // This call is not required with TopLink JPA, which uses a Query Hint
        // to clear the l2 cache in the DAO.
        //EntityManagerHelper.getEntityManager().clear();
        flag = true;

        return new DataPage<Periodo>(totalNumberPeriodo, startRow, periodo);
    }

    public DataModel getDataDTO() {
        state = PersistentFacesState.getInstance();

        if (onePageDataModel == null) {
            onePageDataModel = new LocalDataModelDTO(pageSize);
        }

        return onePageDataModel;
    }

    /**
    * This is where the Object data is retrieved from the database and
    * returned as a list of objects for display in the UI.
    */
    private DataPage<PeriodoDTO> getDataPageDTO(int startRow, int pageSize) {
        // Retrieve the total number of objects from the database.  This
        // number is required by the DataPage object so the paginator will know
        // the relative location of the page data.
        int totalNumberPeriodo = 0;

        try {
            totalNumberPeriodo = BusinessDelegatorView.findTotalNumberPeriodo()
                                                      .intValue();
        } catch (Exception e) {
            FacesContext.getCurrentInstance()
                        .addMessage("", new FacesMessage(e.getMessage()));
        }

        // Calculate indices to be displayed in the ui.
        int endIndex = startRow + pageSize;

        if (endIndex > totalNumberPeriodo) {
            endIndex = totalNumberPeriodo;
        }

        try {
            periodo = BusinessDelegatorView.findPagePeriodo(sortColumnName,
                    sortAscending, startRow, endIndex - startRow);

            if (Utilities.validationsList(periodo)) {
                periodoDTO = new ArrayList<PeriodoDTO>();

                for (Periodo periodoTmp : periodo) {
                    PeriodoDTO periodoDTO2 = new PeriodoDTO();
                    periodoDTO2.setCodperiodo(periodoTmp.getCodperiodo()
                                                        .toString());
                    periodoDTO2.setFechafin(periodoTmp.getFechafin());
                    periodoDTO2.setFechainicio(periodoTmp.getFechainicio());
                    periodoDTO2.setPeriodo(periodoTmp);
                    periodoDTO2.setPeriodoView(this);
                    periodoDTO.add(periodoDTO2);
                }
            }

            // Remove this Renderable from the existing render groups.
            leaveRenderGroups();
        } catch (Exception e) {
            FacesContext.getCurrentInstance()
                        .addMessage("", new FacesMessage(e.getMessage()));
        }

        // Add this Renderable to the new render groups.
        joinRenderGroups();
        // Reset the dirtyData flag.
        onePageDataModel.setDirtyData(false);
        // This is required when using Hibernate JPA.  If the EntityManager is not
        // cleared or closed objects are cached and stale objects will show up
        // in the table.
        // This way, the detached objects are reread from the database.
        // This call is not required with TopLink JPA, which uses a Query Hint
        // to clear the l2 cache in the DAO.
        //EntityManagerHelper.getEntityManager().clear();
        flag = true;

        return new DataPage<PeriodoDTO>(totalNumberPeriodo, startRow, periodoDTO);
    }

    protected boolean isDefaultAscending(String sortColumn) {
        return true;
    }

    /**
    * This method is called when a render call is made from the server. Render
    * calls are only made to views containing an updated record. The data is
    * marked as dirty to trigger a fetch of the updated record from the
    * database before rendering takes place.
    */
    public PersistentFacesState getState() {
        onePageDataModel.setDirtyData();

        return state;
    }

    /**
    * This method is called from faces-config.xml with each new session.
    */
    public void setRenderManager(RenderManager renderManager) {
        this.renderManager = renderManager;
    }

    public void renderingException(RenderingException arg0) {
        if (arg0 instanceof TransientRenderingException) {
        } else if (arg0 instanceof FatalRenderingException) {
            // Remove from existing Customer render groups.
            leaveRenderGroups();
        }
    }

    /**
    * Remove this Renderable from existing uiCustomerBeans render groups.
    * OnDemandRenderers are named/created using the underlying Customer Number.
    */
    private void leaveRenderGroups() {
        if (Utilities.validationsList(periodoDTO)) {
            for (PeriodoDTO periodoTmp : periodoDTO) {
                renderManager.getOnDemandRenderer("PeriodoView").remove(this);
            }
        }
    }

    /**
    * Add this Renderable to the new uiCustomerBeans render groups.
    * OnDemandRenderers are named/created using the underlying Customer Number.
    */
    private void joinRenderGroups() {
        if (Utilities.validationsList(periodoDTO)) {
            for (PeriodoDTO periodoTmp : periodoDTO) {
                renderManager.getOnDemandRenderer("PeriodoView").add(this);
            }
        }
    }

    public void dispose() throws Exception {
    }

    public RenderManager getRenderManager() {
        return renderManager;
    }

    public void setState(PersistentFacesState state) {
        this.state = state;
    }

    public SelectInputDate getTxtFechafin() {
        return txtFechafin;
    }

    public void setTxtFechafin(SelectInputDate txtFechafin) {
        this.txtFechafin = txtFechafin;
    }

    public SelectInputDate getTxtFechainicio() {
        return txtFechainicio;
    }

    public void setTxtFechainicio(SelectInputDate txtFechainicio) {
        this.txtFechainicio = txtFechainicio;
    }

    public HtmlInputText getTxtCodperiodo() {
        return txtCodperiodo;
    }

    public void setTxtCodperiodo(HtmlInputText txtCodperiodo) {
        this.txtCodperiodo = txtCodperiodo;
    }

    public HtmlCommandButton getBtnSave() {
        return btnSave;
    }

    public void setBtnSave(HtmlCommandButton btnSave) {
        this.btnSave = btnSave;
    }

    public HtmlCommandButton getBtnModify() {
        return btnModify;
    }

    public void setBtnModify(HtmlCommandButton btnModify) {
        this.btnModify = btnModify;
    }

    public HtmlCommandButton getBtnDelete() {
        return btnDelete;
    }

    public void setBtnDelete(HtmlCommandButton btnDelete) {
        this.btnDelete = btnDelete;
    }

    public HtmlCommandButton getBtnClear() {
        return btnClear;
    }

    public void setBtnClear(HtmlCommandButton btnClear) {
        this.btnClear = btnClear;
    }

    public void setRenderDataTable(boolean renderDataTable) {
        this.renderDataTable = renderDataTable;
    }

    public void setFlag(boolean flag) {
        this.flag = flag;
    }

    public List<PeriodoDTO> getPeriodoDTO() {
        return periodoDTO;
    }

    public void setPeriodoDTO(List<PeriodoDTO> periodoDTO) {
        this.periodoDTO = periodoDTO;
    }

    public TimeZone getTimeZone() {
        return java.util.TimeZone.getDefault();
    }

    /**
    * A special type of JSF DataModel to allow a datatable and datapaginator
    * to page through a large set of data without having to hold the entire
    * set of data in memory at once.
    * Any time a managed bean wants to avoid holding an entire dataset,
    * the managed bean declares this inner class which extends PagedListDataModel
    * and implements the fetchData method. fetchData is called
    * as needed when the table requires data that isn't available in the
    * current data page held by this object.
    * This requires the managed bean (and in general the business
    * method that the managed bean uses) to provide the data wrapped in
    * a DataPage object that provides info on the full size of the dataset.
    */
    private class LocalDataModel extends PagedListDataModel {
        public LocalDataModel(int pageSize) {
            super(pageSize);
        }

        public DataPage<Periodo> fetchPage(int startRow, int pageSize) {
            // call enclosing managed bean method to fetch the data
            return getDataPage(startRow, pageSize);
        }
    }

    private class LocalDataModelDTO extends PagedListDataModel {
        public LocalDataModelDTO(int pageSize) {
            super(pageSize);
        }

        public DataPage<PeriodoDTO> fetchPage(int startRow, int pageSize) {
            // call enclosing managed bean method to fetch the data
            return getDataPageDTO(startRow, pageSize);
        }
    }
}
